[koharu] add 'gallery' and 'search' extractors (#5893, #4707)

docs/configuration.rst

@@ -2605,6 +2605,32 @@ Description
     the first in the list gets chosen (usually `mp3`).
 
 
+extractor.koharu.cbz
+--------------------
+Type
+    ``bool``
+Default
+    ``true``
+Description
+    Download each gallery as a single ``.cbz`` file.
+
+    Disabling this option causes a gallery
+    to be downloaded as individual image files.
+
+
+extractor.koharu.format
+-----------------------
+Type
+    ``string``
+Default
+    ``"original"``
+Description
+    Name of the image format to download.
+
+    | Available formats are
+    | ``"780"``, ``"980"``, ``"1280"``, ``"1600"``, ``"0"``/``"original"``
+
+
 extractor.lolisafe.domain
 -------------------------
 Type

docs/supportedsites.md

@@ -475,6 +475,12 @@ Consider all listed sites to potentially be NSFW.
     <td>Soundtracks</td>
     <td></td>
 </tr>
+<tr>
+    <td>Koharu</td>
+    <td>https://koharu.to/</td>
+    <td>Galleries, Search Results</td>
+    <td></td>
+</tr>
 <tr>
     <td>Komikcast</td>
     <td>https://komikcast.lol/</td>